I don't want to brush my teeth

Martin makes a decision: from now on, he will not brush his teeth.
And so he does until one night when a tooth falls, a very special animal comes to visit him: he is the Little Mouse Perez!
The rodent appoints him as an honorary assistant during one night, so Martín has the opportunity to accompany him on his magical working day.
Together with the Little Mouse Pérez, Martín will visit many boys, girl...